Sheriff Tyrone Lewis has not released the inmate's name, but said he had pre-existing health problems before he was booked into the Raymond facility.

"It's depending upon the coroner's report, because I cannot say, 'Well he died because of this or because of that.' During this review, what we do is try to find ways to prevent reoccurrence of what occurred," said Floyd Brown, the medical administrator for the jail.

The inmate was found during a routine check by guards.

The final autopsy report is pending toxicology results, county officials said.